Here we are with the next part of our RAID series. This time the article will concern RAID 5, RAID 6 and two alternatives – RAID 5E and 5EE. Take a look… RAID 5 RAID 5 is one of the most popular implementations. It works almost the same as RAID 4 but with one difference. The parity bits are not recorded on a specifically prepared disk – they are dispersed throughout the matrix structure. What [...]

Hard disk performance is limited by mechanical parts velocity and there is no solution for this issue. Servers are using RAID for redundancy and for performance. Thanks to RAID technology it is possible to scale single hard disk performance. The team of disks works faster, but applications are needing increased improvements as over periods technical evolutions. There are storage offers using DDR RAM or SLC Flash that claim 2-20 GB/s throughput or 100K to millions [...]

We all have limited time to study long and complicated information about RAID theories, but you may be interested as to how RAID 5 works. We made it simple for you by providing the shortest and easiest explanation ever. RAID 5 – how it works? First we need to remind you XOR definition: XOR function result is equal 1 if both arguments are different. XOR (0, 1) = 1 XOR (1, 0) = 1 XOR [...]